The scrange was a large tusk-tailed amphibian that lived in the muddy swamp area of Dagobah.

Full view of a scrange from the side

This creature had many bioluminescent patches on its body to light its way around or to attract prey. When prey got close, the scrange would lift out of the mud on its crustaceal legs to make a quick attack or it would use its tail tusks to impale its prey.